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Finding the Fourth Proportional to 185,355.89, 278,035.30 and 121,367.95

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Solution

The fourth proportional to 185,355.89, 278,035.30 and 121,367.95 is: 182,052.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,355.89 : 278,035.30 = 121,367.95 : x
  2. Step 2: Convert to fraction form
    185,355.89/278,035.30 = 121,367.95/x
  3. Step 3: Cross multiply
    185,355.89x = 278,035.30 × 121,367.95
  4. Step 4: Simplify right side
    185,355.89x = 33,744,574,388.64
  5. Step 5: Solve for x
    x = 33,744,574,388.64/185,355.89
  6. Step 6: Final answer
    x = 182,052.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.